sometimes the tumblers slip, normal for dial safes after a while. try the combo 2 times. first try, when you get to the middle number go over one digit. if it don't open, try it again but go one number under on the middle. if it works, your welcome. if not, it's all i got. good luck.

sometimes the tumblers slip, normal for dial safes after a while. try the combo 2 times. first try, when you get to the middle number go over one digit. if it don't open, try it again but go one number under on the middle. if it works, your welcome. if not, it's all i got. good luck.

Sentry has some "not usual" combo procedures.
Sentury will send you as combination if you can give them the model and serial info. You send them a notorized letter and they will send you combo for a fee.
My safe had a malfunction years a while back.
Local safe cracker had it open in 6 minutes.
The tumbler assembly was replaced under warranty. Through the safe cracker. Design issue some,how the little workings realign themselves and will change a number.

Again though sentry has safes that require you to turn the dial back until it stops after reaching your last number to open.

yeah, really. cost me 230 bucks to get a guy in to change the dial/tumblers and set the combination when i had this issue. the company that made the safe told me that little trick with the slipping combos but it only worked for so long. the safe guy told me on a lot of the gun safes with a dial, the tumblers are plastic dials and they wear out with use. he installed a better dial with metal parts. your case may vary.

Could be the pins are just sticky .
Lay a board on the door close to the lock (So you don't mark up the door) and give it a couple of raps with a hammer.
Do that on either side of the lock and try it again.

S&G offers three types of lock wheels:
1. Brass. This is classic, lasts forever, and is the best.
2. Zymac (zinc alloy). Cheaper; plus they use a less robust mechanism to lock the wheels in place when a combo is set
3. Plastic. Used on high end locks resistant to radilogical analysis

Some Sentry safes have a non-standard procedure - leave the dial on the last number and then turn the handle.

As to brute force - a proper drill job will leave the safe repairable (hardened tapered drill pins are hamered into the drill hole and ground flush) without any compromise in security of the container.

There is also the ITL auto dialer, but I don't know if it works with the non-standard last number procedure on the Sentry.

Could be the pins are just sticky .
Lay a board on the door close to the lock (So you don't mark up the door) and give it a couple of raps with a hammer.
Do that on either side of the lock and try it again.

sometimes the tumblers slip, normal for dial safes after a while. try the combo 2 times. first try, when you get to the middle number go over one digit. if it don't open, try it again but go one number under on the middle. if it works, your welcome. if not, it's all i got. good luck.

yeah, if someone comes in to do it, the whole thing comes out of the box, i doubt they'll break it up. you'll also get asked about the combination, he can reset to the same one you had or set a new one.

my experience with this is after i got the safe opened with the middle number trick, after a month or so it started doing it again. i should have got it repaired sooner. i finally got it open and left it open until help arrived with the fix.